This article assembles information obtained from the documental library of the Escola de Minas de Ouro Preto (School of Mines, Ouro Preto). This paper systematically analyzes these documents. This study was begun a little more than a year ago and belongs to the project "Organização, restauração e difusão do acervo técnicao científico da UFOP: novos elementos para história de ciência no Brasil" (Organization, restauration and disclosure of the technical scientific library at UFOP: new elements of Brazil's scientific history) sponsered by CNPq. As can be inferred from the title of this article, the proposal is to go back to Universal Expositions as catalystic events of programed actions with the disclosure of conquests attributed to technical scientific progress. The work coordinated and performed by the Escola de Minas de Ouro Preto (EMOP), both in the Province and later in the State of Minas Gerais, will be written with emphasis on the "Sociedade de Geographia Econômic de Minas Geraes" (The Minas Gerais Society of Geographic Economy).
School of Mines; Universal Expositions; Minas Gerais Society of Geographic Economy; Technology; Capitalism